Uniswap

Introducing @unichain — a new L2 designed for DeFi ✨ 

Fast blocks (250ms), cross-chain interoperability, and a decentralized validator network

Built to be the home for liquidity across chains

Elevating onchain creators @brightmoments @ampsfun @nodefoundation

To be fair, they already created a lot of standards for defi (AMM, swap UI that everyone imitates). This seems like a natural continuation to me.

musician: gigameshmusic.com | dev: github.com/gigamesh

Not really...
https://support.bancor.network/bancor-amm/amm-automated-market-maker